They are now fourth in the Premier League table as they chase Champions League qualification for next season.
And the 30-year-old again found himself on the end of criticism for his latest display after replacing Martial at half-time in United's 2-0 home defeat against Paris Saint-Germain, with the game scoreless at the break.
"I think Ashley Young is doing fantastic in every position he plays but ultimately you think [Thilo] Kehrer that plays for PSG, Kyle Walker for Man City".
The game itself was an even contest for most of the first half, though PSG took control in the second as United struggled to adapt after losing Anthony Martial and Jesse Lingard to injury. He has a lot of respect for the club [United], there's nothing awful in what he said but it was between me and him, so I won't tell you right now.
"Today is a reality check for us on the level of top teams".More news: Kashmiri ode to ‘Game of Thrones’ included in official tribute anthem
United won at Juventus in the group stage under Jose Mourinho this season, before securing impressive victories at Tottenham and Arsenal with Solskjaer.
They are the kind of results that Herrera will cling to heading to the French capital for the return leg on March 6, when the visitors must learn from their set piece sloppiness to stand any chance.
"I am not scared of any comeback, because if you are scare you can't reach any goal", Alves said. "We are very proud of our team, our coach and our supporters - it was a magical evening".
'So, it's hard because against these kind of teams, such good teams, you don't want to concede goals from corners. They had 10 shots at goal but only one was on target (green arrow in right-hand graphic) which came from Marcus Rashford after eight minutes.
Man Utd had 11 crosses from open play against PSG and none of them were successful (left-hand graphic).
They soaked up United's pressure and early high tempo.More news: Spurs' Mauricio Pochettino slams referee over 'unbelievable' Son Heung-min booking
Having a solid back-line like PSG's would make such a difference to the whole team and it is possible they could do that by making only one signing.
"He's in good form, we'll need him tomorrow, especially without Cavani and Neymar, hopefully he'll have a great performance tomorrow".
'But this is football.
"It was an experience that can go either way, it's not going to be a season-defining one, it's one we have to learn from".
As disappointing as Tuesday's loss might be, there are still positives for United.More news: The Division 2 Open Beta to Take Place in Early March